Single-step electrodeposition of superhydrophobic black NiO thin films

Autor:	A. Bahramian, Marielle Eyraud, Florence Vacandio, V. Hornebecq, Philippe Knauth, Thierry Djenizian
Přispěvatelé:	Matériaux divisés, interfaces, réactivité, électrochimie (MADIREL), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Mines Saint-Etienne, Center of Microelectronics in Provence, Department of Flexible Electronics, 13541 Gardanne, ANR-11-IDEX-0001,Amidex,INITIATIVE D'EXCELLENCE AIX MARSEILLE UNIVERSITE(2011), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání:	2019
Předmět:	Materials science Scanning electron microscope General Chemical Engineering 02 engineering and technology Substrate (electronics) engineering.material 010402 general chemistry 01 natural sciences Corrosion Contact angle Electrodeposition Coating Materials Chemistry Electrochemistry Thin film Black NiO Superhydrophobic ComputingMilieux_MISCELLANEOUS Non-blocking I/O [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Dielectric spectroscopy thin films Chemical engineering engineering 0210 nano-technology
Zdroj:	Journal of Applied Electrochemistry Journal of Applied Electrochemistry, 2019, 49 (6), pp.621-629. ⟨10.1007/s10800-019-01305-2⟩ Journal of Applied Electrochemistry, Springer Verlag, 2019, 49 (6), pp.621-629. ⟨10.1007/s10800-019-01305-2⟩
ISSN:	1572-8838 0021-891X
DOI:	10.1007/s10800-019-01305-2
Popis:	International audience; Black finished surfaces have extensive applications in many domains, such as optics, solar cells, and aerospace. The single step electrodeposition of superhydrophobic black NiO films from a dimethyl sulfoxide based electrolyte is described in this paper. The physicochemical properties of the obtained film were characterized using Scanning Electron Microscopy, X-ray Diffraction, and electrochemical tests (Electrochemical Impedance Spectroscopy and potentiodynamic polarization). A rough surface with a low reflection of light was formed after the deposition process that increased the contact angle of water from about 87º (for bare Cu) to 163º (in presence of the black coating), which improved the corrosion resistance of the Cu substrate by about 30%. The formed black NiO film revealed a notably high stability and kept its appearance even after corrosion tests.
Databáze:	OpenAIRE
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